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  • Upcoming Events

    • 30 March 2024 02:00 PM Until 03:00 PM
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      All Appliantology tech members are invited to join in this workshop on all things Appliantological: bidness, customers, tools, troubleshooting, flavorite brewski, whatever. Webcams and microphones are open and live!
      This workshop is also a great time for any students at Master Samurai Tech to bring any and all questions about the coursework. We're happy to walk through any concepts you're having trouble with. Think of it like office hours with your teachers. 
      If you have a specific appliance problem you'd like us to talk about, post it here! We need a problem statement and a PDF of the tech sheet or schematic so we can all see it on screen share. If you have a PDF that isn't already in the File library here at Appliantology, send it to us by attaching it to the contact form. 
      Also, follow this Calendar Event so you'll get notified of new posts here. Look for the "Follow" button either at the top of the topic on desktop or below the topic on mobile.
      Who: This workshop is only available to tech members at Appliantology.
      When: Saturday, March 30 @10:00 AM Eastern Time.
      Where: Online via Zoom
      How:
      Click here to go to the forum topic with the registration link. If you're interested, register now. Arrive a couple minutes early to make sure your connection is working. Set a reminder for yourself for this workshop so you don’t miss it.  And check out past workshops here: https://appliantology.org/announcement/33-webinar-recordings-index-page/

Lennox Complete Heat System


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I have a 10 yr old Lennox Complete Heat System

HM30 with AM30

. . . . . . . . . .

. . . . . . . . . .

(laughter continues)

I'm thinking of replacing them ..

What are my options / recommendations for a high efficiency direct vent gas water heater and

direct vent 105,000 btu furnace ?

and a 20 yr old Bryant 2 ton A/C EER 10.0 w/ scroll Compressor

 

 

 

 

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13 is your minimum SEER .

A higher SEER demands more upfront cost that may or may not be returned in utility savings over the life of the unit.

Most furnaces come with a 20 year to lifetime warranty on the heat exchanger.

Any condenser with a Copeland compressor would be recommended.

Most systems now come with a 10 year parts warranty.

Amana condensers can be purchased with a lifetime warranty.

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NOTE: On the Amana condenser warranty.

If the coil or compressor fail Amana replaces the unit,not the part.

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  • 1 month later...

I'm not aware of any basic central AC system sold in the US today that does not use a Copeland scroll. Even value brands like Goodman use them instead of Bristol recips like back in the day when I helped on the first CAC rulemaking (anno 1999). Only VS compressors like the panasonic in the Nordyne, or the rotaries found in some mini-splits / RAC's / PTACs are not scrolls. 

 

If budget is a concern, there are plenty of gas storage water heaters that allow direct vent. Simple, keep the combustion gases outside, etc. Easy to replace too. Powered units should allow more freedom re: venting materials (see Vertex, for example) but may be noisy. 

 

As for the furnace & AC unit, I think the installer is a bigger factor than the brand, all things considered. If you're in a cold part of the country or use propane, condensing furnaces are usually a no-brainer. Staging may help comfort and/or zoning. Similarly, a 16 SEER AC system may be a good deal after rebates, state, local, utility incentives. I'd look into both. 

 

One thing to always check also is whether your system is compliant re: the static pressure drop requirements set out by the manufacturer. I.e. are there sufficient supply / return ducts of the right size, etc. to ensure the thing can do its job. It's always amazing for me to see a six-figure job done wrong!

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